Machine for and process of forming linings for storage-battery jars.



A. J. MEIER.

MACHINE FOR AND PROCESS OF FORMING LININGS FOR STORAGE BATTERY JARS.

APPLICATION FILED 1330.24, 1908.

962,714. 1 Patented June 28,1910.

3 SHEETS-SHEET 1. 1 11.

A. J. MEIER.

MACHINE FOR AND PROCESS OF FORMING LININGS FOB. STORAGE BATTERY JARS.

APPLICATION FILED D110. 24, 1908.

962,714. I Patented June 28,1910.

3 SHEETS-SHEET 3.

I II%: II v I II port 29,-said piston having an enlarged head UNITEDSTATES PATENT OFFICE.

ALBERT J. MEIER, or GLENDALEQMISSOURI.

MACHINE FOR AND PROCESS OF FORMING LININGS FOR STORAGE-BATTERY JARS.

Specification of Letters Patent. Patented J 11116 28, 1910- Applicationfiled December 24, 1908. Serial No. 469,097.

age-Battery Jars, of which the ollowing is a specification, referencebeing had therein to the accompanying drawings.

This invention consists in a machine for making linings for storagebattery jars.

In the drawings forming part of this specification, in which likenumbers of reference denote like. parts wherever they occur, Fi re 1 isa front elevation (partly in section? Figs. 2, 3, and 4 are sectionalviews of the molding dies, same being shown in different positions; Fig.5 is a top plan view of the female die; Fig. 6 is an elevation of thetruing device; Fig. 7 is atop plan View of same; and Fig. 8 is a topplan view of a detail.

The machine rests upon base -1, to which cylinder 2 is bolted. Piston 4reciprocates in chamber 3 inside of cylinder 2. To one end of saidpiston-the male die 5 is bolted by means of rin 6 and bolts 7, beingthus removable there rom. Ring 6 is composed of segments 8 and 9,fastened together by bolts 10, and is provided with a tongue 11, whichfits into groove 12 formed in the periphery of piston 4. A disk 13, isintegral with die 5, and flange 14 projects from. said.

disk. Bolts 7 pass through perforations in said flange 14 and rin 6, andbind same together and die 5 to piston 4. Chamber 3 is closed by head15, and made air-tight by gaskets 16. Piston 4 is hydraulically actuatedby fluid entering chamber 3 through port 1 Ring 18, revents the passageof said fluid beyond the enlarged head 19 of the piston 4, thus leavingalr-space 20 between the head 19 and head 15. A flange 21 extends fromcylinder 2 and rests upon flange 22: of base 1 and is bolted thereto bybolts 23,said' flange 22 extendin slightly underneath the body of cyliner 2.. A flange 24, also, projects from cylinder 2, perforations 25assing through said flange. Cylinder 26 is similar to cylinder 2, butinverted in its position and the direction of its opening.- Piston 27reciprocates in chamber 28 in cylinder 26, being hydraulically propelledby fluid entering through 30 similar to that on piston 4. Ring 31 inchamber 28 serves the same purpose as ring- 18 in' chamber 3; head 32corresponds to head 15; and air-space 33-contains gaskets 34, whichperform the same function as gaskets 16 in air-space 20. A flange 35,containing perforations-'36, projects from cylinder 26. Tie-rods 37 passthrough per forations 36 in flange and perforatlons 25 in flange 24, andbind the cylinder '26 to cylinder 2, heads 38 binding againstflange 24and nuts'39 binding against flange 35.

Nuts 40 suitably adjusted -on said tie-rods space cylinder 26 awayfromcylinder 2 any :necessary or desired distance.

adjustably supported by said tie-rods, being.

Casting 41 is attached thereto by caps 42 Said casting is provided withlugs 43, each containing a recess 44 to receive one of said tie-rods. Aprojection 45 containing a recess 46 enables cap 42 to coiiperate withrecess 44 in bind-- ing casting 41 tightly upon said tie-rods, samebeing furthermore supported by nuts 47, upon which said lugs 43 rest andbeing bound thereon by nuts 48. Die 49 is attached to piston 27 by meanssimilar to those employed in attaching die 5 to piston 4, that is tosay, by means of ring 50, flange 51, bolts 52, and nuts 53. Inconnection with die 49, however, a drip receptacle or gutter 54 isprovided, same not being necessary in connection with die 5. Said gutter54 is borne by flange 51, and is intended to receive leakage, if any,from chamber 28, and to convey same through opening or spout 55' awayfrom the mold in the center of casting 41. A female die is formed in thepassage 56, which extends entirely through casting 41. .Said female dieconsists of the walls of said passage '56, which may be given anydesired configuration. As shown in. the drawings, a flange 57 providedwith indentations 58 to form corrugations on the object molded, islocated within said passage and extends therearound. The shoulder 59forms the rim 60 on the finishedarticle. The bower passage 56 in theportion between flange 57 and die 5 is lar er than in the part oppositeflange 57,

an the head'62 of die 5 corresponds to the size of said passageopposite. said flange 57 while the size of the remainder of said diefits that of the wider part of said passage. Thus, in operation, themain body of ;die 5 at the end of its forward movement abuts againstflange 57, while head 62 "projects into the space bounded by said flange57. Die 49 may be suitably configured, as, for instance, by indentations63 in case it is desired that the object molded shall contain internalcorrugations.

In order thatathe object when molded can be conveniently andautomatically withdrawn from the female die consisting of passage 56, agroove 64 is formed in the perlphery of die 49, the shoulder 65 pullingon the metal which has entered said groove and thus drawing the entireobject out. of passage 56. The object is then sawed or cut 0 die 49 on aline opposite said shoulder 65.

After die 5 has been raised into passage 56, molten metal (or othermaterial to be molded) is poured or run into passage 56. When die 49 hasentered passage 56 and molded the bottom of the article into the desiredshape (which operation occurs when die 5 is in its most advancedposition), die 5 is retracted,1and While die 49, is continuing itsforward movement to the extremity thereof, and also while it is beingretracted air is admitted through passage 66, normally closed by valve67, said valve thus preventing the exit of the metal but permitting theentrance of the air while die 49 is being retracted.

The operation of the machine is as follows: Piston 4 and die 5 areraised by hydraulic pressure applied to head 19 through port 17. Die 5,after reaching the osition shown in Fig. 2, is retained there y-saidpressure. The required amount of molten metal is then poured intopassage 56 (Fig. 2), either by hand or automatically, whereuponhydraulic pressure is applied to the head of piston 27 through port 29.Die 49 is thus forced downward to the position shown in Fig. 3, therebyforming the inner ribs on the bottom of the object to be molded. Afterthis operation is completed, die 5 is withdrawn to its former positionby releasing the pressure upon the liquid in chamber 3 and by reason ofthe expansion of the compressed air in air-space 20. The pressure onpiston-head 30 is continued, and die 49, continuing its travel, takesthe position shown in Fig. 4. The metal under pressure in passage 56between dies 5 and 49 partly exudes into the narrow space surroundingdie 49 and terminating in groove 64, beyond which said metal can notpass. The continued movement of die 49 causes the shoulder of saidgroove 64 op osite shoulder 65 to ress the metal forward and, as same ishe din the restricted space surrounding die 49, it is thereb' squeezedor forced out of said space un er considerable essure and into theelongated form of the o b'ect to be formed 68, shown in Fig. 4, the inentations 58 of the flange 57 at the same tim imparting to said object68 the external rib on the wall thereof. As the metal expands air entersits increasing confines through the passage 66, causing the expandingbody to follow the outline of the passage or die 56 and preventing itsbuckling or distortion. Pressure upon the liquid in chamber 28 is thenrelieved, and the expansion of air in air-space 33 causes die 49 totravel in the reverse direction, carrying object 68 with it. Valve 67 isopened by said movement, and the air thus admitted prevents the possiblecollapse of the wall of said object.

After the lining 68 hasbeen made in the manner heretofore described, andsame has been sawed on the line of shoulder 65 so as to be removed fromdie 49, its shape is likely to be irregular. In order to true same, ashaping chamber or finishin mold 69 is provided. The object 68 is s ownin position by dotted lines in Fig. 6. Ribs 70 on said object registerwith grooves 71 when said object 68 is inserted into the chamber 69. Cap72 is then fitted into the open end of object 68 and chamber 69, andcloses said opening. Air pressure is then applied through opening 73 insaid cap, thus finishing the object 68 by pressure against said mold 69.

Instead of utilizing the compression of air in air-space 2Q, hydraulicpressure may be introduced into said space throu h a port or ports,entering through the wal of cylinder 2 or head 15.

Having thus described. my said invention, what I claim and desire tosecure by Letters-Patent is:

1. In a machine of the character described, the combination of astationary female die, an end-closing male die therefor, and a pressingdie coiiperating therewith, said pressing die having a main pressingsurface of less cross-sectional area than said female die, a secondarypressing area conterminus with the inside of said female die and agroove formed adjacent said secondary pressing surface.

2. In a machine of the character described, the combination of astationary die, containing a projection and a pair of movable dies oneof which is adapted to travel into contact with said rojection.

3. In a machine 0 the character described, the combination of a castingcontaining a passage, the wall of said passage having a flange forming apair of shoulders projecting thereinto, a die adapted to travel intoengagement with one of said shoulders, another die adapted to forcefluid material into squeezing contact with said other shoulder, andmeans for actuating said movable dies.

. 4. In a machine of the character de scribed, the combination of a pairof cylinders, a pair of pistons adapted to reciprocate therein, each ofsaid cylinders having a head through which its respective piston moves,and each of said cylinders having a fluid inlet port at the opposite endthereof, there being a groove formed in each of said pistons and atongued ring engaging each of said grooves, a die borne by each' saidcylinders and on said casting to bind the parts together.

-5. The herein-described process of molding objects, consisting inpouring the fluid material to be molded into a suitable chamber, pressinsame so as simultaneously to form part 0' the object and to cause thesurplus material to run into a restricted passage, and, thereupon,applying further pressure to the material in said restricted passage soas, by squeezing, to project same forward, forcing in advance thereofthe part already formed of the object to be molded and at the same timeto form the remainder of the object.

6. The herein-described process of forming lead linings for storagebattery jars, consisting in introducing molten lead into a chambercontaining a movable bottom, pressing'said molten lead against saidbottom so as to form the bottom of the lining thereagainst, and at thesame time causing the surplus metal to run into a restrictedpassage,-removing the bottom of said chamber, and applying furtherpressure to the molten metal in said restricted passage so as to squeezesameout of said restricted passage, and projectingv same in the form ofrelatively thin walls forward, carrying therewith the lining bottompreviously formed,

7 The herein-described process of forming lead linings for storagebattery jars,

consisting in introducing molten lead into a chamber containing amovable bottom, pressing said molten lead against said bottom so astoform the bottom of the lining thereagainst, and at the same timecausing the surplus metal to run into a restricted passage, removing thebottom of said chamber, and applying further pressure to the moltenmetal in said restricted passage so as to squeeze same out of saidrestricted pass sage, and projecting same in the form of relatively thinwalls forward, carrying therewith the lining bottom prevlously formed,and admitting air to prevent the collapse of said walls.

8. The herein-described process of forming lead liningsfor storagebattery jars, consisting in introducing molten lead'mto a chambercontaining a movable bottom, pressing said molten lead against saidbottom so as to form the bottom of the lining thereagainst, and at thesame time causing the surplus metal to run into a restricted passage,removing the bottom of said chamber, and applying further pressure tothe molten metal in said restricted passage so as to squeeze same out ofsaid restricted passage, and projecting same in the form of relativelythin walls forward, carrying therewith the lining bottom previouslyformed, and admitting air under pressure to prevent the collapse of saidwalls.

9. In a machine of the character described, a female die having aninteriorlv shouldered die passage and a pair of male dies independentlymovable in the die passage, one ofthe male dies having a shoulderedpressing head for cooperation with the shoulder on the die assage.

In testimony. whereo I have afiixed my signature in presence of twowitnesses.

ALBERT J. MEIER.

Witnesses:

EDNA J GOOKEL, GLADYS WALTON.

